Rotary swivel



V. YORK.

ROTARY SWIVEL.

APPLICATION FILI-:D JUNE I, 1920.

Patented Nov. 2, 1920.

ga/:41 112K UNITED STATES VICTOR YORK, OF .ARDMOBE OKLAHOMA.

ROTARY SWIVEL.

Specification of Letters Patent.

Patented Nov. 2, 1920.

Application filed .Tune 1, 1920. Serial No. 385,792.

To aZZwwm it may concern:

Be it known that I, Vieron YORK, a citizen of the -United States, residing at Ardmore, county of Carter, and State of Oklahoma, have invented a new and useful Improvement comprising the Rotary Swivel, of which the following is a'specification.

My invention relates to the art of drilling oil wells by the so called rotary system 1n which a string of pipe is suspended by a cable from the top of the derrick being simultaneously rotated and fed with mudladen iiuid at its upper end. v

The principal object of my invention is to provide a swivel by which such a string of pipe may be supported and simultaneously fed with mud-laden fluid under ressure.

Referring to the drawing w ich is for illustrative purposes only,

Figure 1 is a side elevation partly 1n section of my invention.

Fig. 2 is a section on a plane represented by the line 2--2 of Fig. 1.

Fig. 3 4is a section on a plane represented by the line 3 3 ofFig. 1.

In the embodiment of the invention shown, 11 is the upper end ofthe drill pipe secured by means of a collar 12 on a body 13, this body being expanded to form an oil chamber 14 which is provided with a flange 15 -upon which a cap 16 is secured by a' ,flange 17 and bolts 18. Secured in the central passage 19 of the body 13 is a body tube 20, this tube extending u and surrounding Va goose neck tube 2l which projects downwardly therein, a packing 22 compressed by a gland being provided to make a tight mud stuliing box between the tubes 20 and 21 so that pressure may be maintained thereon. The goose neck tube 21 is provided with. a goose neck 23 connected by means of a union 24 with a nipple 25 to which a pressure hose, not shown, is secured. The goose neck tube is provided with a collar 26 which is engaged by a yoke 27 which is threaded on the tube 21 and which extends down and is threaded upon a hanger 28. kA packing 29 compressed by a gland 30 is provided between the hanger 28 and the body tube 2 1 forming what ma be termed an upper oil stuin box. he hanger 28 extends throng the cap 16, packing 35 compressed by gland 36 making an oil tight joint between the cap 16 and the hanger 28, parts 35 and 36 forming what may be termed a lower oil s tuiiin box. The hanger 28 is provided with a ange 40 upon which roller bearings 41 are placed. These roller bearings supportI the ca'p 16. In practice the chamber 14 is filled with oil which is held in place by means of the upper and lower oil stuffing boxes. The whole device is supported by means of an elevator which is placed about the hanger 28, below the yoke 27 and above the gland 36, this elevator being shown diagrammatically in dotted lines at 50: In practice the device is suspended on this elevator which is in turn hung from a wire rope or cable running over the crown sheave of the derrick. The hanger 28, the yoke 27, the goose neck tube 21 and the goose neck 23 are stationary, the remainder ot theapparatus shown being rotated by the rotary table not shown which engages the pipe 11. The chamber 14 being filled with oil so that the parts are well lubricated,

mud is forced through the gooseneck 23 and the tube 21 into the body tube 2O and downwardly through the central passage 19 in the body 13 and into the drill rpipe 11.

I claim as my invention:

1. In a swivel for supporting a string of drill pipe; a bodyto which said drill pipe is secured, said body having a passage connecting with said drill pipe; a body tube secured in gas tight relationship in said body and forming a continuation of saidlpassage; a gooseneck tube projecting into the top of said body tube; a mud'stuting box making .a tight joint between said body tube and said gooseneck tube; means for delivering a mud laden fluid to the top of said gooseneck tube; a hanger surrounding said body tube; an upper oil stuiiing box making an oil tight joint between said hanger and said body tube; a cover secured in oil tight relationship to said body and surrounding said hanger; a lower oil stuiiing box making an oil tightjoint lbetween said cover `and said hanger; a iange formed on said hanger inside an oil chamber formed-by said cover and said body; friction reducing means, for supporting the weight of the drill pipe, between said flange and said cover; and means for rigidly connecting said gooseneck tube to said hanger.

2. In a swivel for supporting a string of drill pipe; a body to which said drill pipe is secured said body having a passage connecting with Said drill pipe; a body tube f drill pipe; a body to which said drill pipe hanger; a flange formed on said hanger inside an oil chamber formed by said cover and said body; friction reducing means, for supporting the weight of the drill pipe, between said flange and said cover; and means for rigidly connecting said gooseneck tube to -said hanger.

3. In a swivel for supporting a string of is secured, said body having-a passage connecting withl said drill pipe; a body tube secured 1n gas tight relationship in said body and forming a continuation of said passage; a gooseneck tube projecting into the top of sald body tube; a mud stufling box making a tight joint between said body tube and said gooseneck tube; means for delivering a mud laden iiuid to the top ofsaid gooseneck tube; a hanger surrounding said body tube; an upper oil 4stuffing box making an oil tight joint between said hanger and said body tube; a cover secured in oil tight relationship to said body and surrounding said hanger; a

lower oil stufiing box making an oil tight joint between said cover and said hanger: a flange formed on said hanger inside an oil chamber formed by said cover and said body; friction reducing means, for supporting the weight of the drill pipe between said liange and said cover; and a yoke rigidly connecting said gooseneck-tube with said hanger.

4. In a swivel for supportingr a string of drill pipe; a body to which said drill pipe is secured said body having a passage connecting with said drill pipe; a body tube secured in gas tight relationship sin said body and forming acontinuation of said passage; a gooseneckotube projecting into the top of said body tube; a mud stuiling box making a tight joint between said body tube and' said gooseneck tube; means for delivering a mud laden fluid to the top of said gooseneck tube; a hanger surrounding said body tube; a cover secured' in oil tight relationship to `said body and surrounding said hanger; a

flange formed on said hanger inside an oil chamber formed by said cover and said body; friction reducing means, for supporting the weight of the drill pipe, between said flange and said cover; and afyoke rigidly connecting said gooseneck tube with said hanger.

5. In a swivel for supporting a string of said drill pipe; a body to which said drill pipe is secured, said body having a passage connecting with said drill pipe; a body tube secured in gas tight relationship in said body and forming a continuation of said passage; a goose-neck tube projecting into the top of said body tube; a mud stufling box making a tight joint between said body tube and said ooseneck tube; means for delivering a mu laden fluid to the top of said gooseneck tube; a hanger surrounding said body tube; an upper oil stufiin box makin an oil tight joint between sai hanger and said body tube; a cover securedin oil ti ht relationship to saidbody and surroundlng said han er; a lower oil stuiing box making an oi tight 'oint between said cover and said hanger; a ange formed on said hanger kinside an oil chamber formed by said cover` and said body; a roller bearing between said flange and said cover' and around said hanger; and means `for rigidly connecting said ooseneck tube to said hanger.

6. In a swivel for supporting a string of drill pipe; a body to which said drill pipe isV secured, said body having a passage connecting with said drill pipe; a body tube secured 1n. gas tight relationship in said body and forming a continuation of said passage; a gooseneck tube projectin into the top of sald body tube; a mud st ng box making a tight joint between said body tube and said gooseneck tube; vmeans for delivering a mud laden fluid to the top of said gooseneck tube; a hanger surrounding said body tube; a cover secured in oil tight relationship to said body and surrounding said hanger; a flange formed on said hanger inside an oil chamber formed by said cover and said body; a roller bearing between said flange and said cover and around said hanger; and means for ri'l idly connecting ooseneck tube to sai hanger.

7 n a swivel for supporting a string of drill pipe; a body to which said drill pipe is secured, said body having a passage connecting with said drill pipe; a body tube secured 1n gas tight relationship in said body and forming a continuation of said passage; a gooseneck tube projecting into the top of said body tube; a mud stuiing box making box making an oil tight .120

and surrounding' said hanger; a lower oil stuiiing box making an oil tight joint between said cover and said hanger; a flange formed on said hanger inside an oil chamber formed -b said cover and said body; a roller bearing tween said flange and said cover and around said hanger; and a yoke rigidly connecting said gooseneok tube with Said hanger.

8. In a swivel for supportin a string of drill pipe; a body to which said drillpipe is secured, said'body having a passage con necting with said drill pipe; a body tube secured in gas tight relationship in said body and forming a` continuation of said passage; a gooseneck tube projecting into the top of said body tube; a mud stuffing box making a. tight joint between said body tube and said gooseneck tube; means for delivering a mud laden fluid to the top of said gooseneck tube; a hanger surrounding said body tube; a cover secured in ol tight relationship to said body and surroundlng said hanger; a Bange formed on said hanger inside an oil chamber formed by said cover and said body; a roller bearing between said flange and said .cover and around said hanger; and a yoke rigidly connecting said goosenek tube with said hanger.

In testimon whereof, I have hereunto set my hand at rdmore, Oklahoma, this 21st day of May, 1920.

VICTOR YORK. 

